The D5100 has the best image sensor. The D3200 has too many, and it suffers in low light as a result, and the Canon has the lowest performing image sensor. After you have that sorted out, it's down the features between them.
And in my opinion, none of them has anything special or amazing over the other. In your price range, look at what the Sony A57 and Pentax K 30 both are better all around cameras than the ones you listed. Avoid the D5200, it uses the same crap sensor found in the D3200.
Of all the types of photography you listed, no camera has an advantage. For particular types of photography, it's all about the type of lens, not the camera. All the camera systems offer different glass to fit your needs.
There is no one best lens.
This type of question gets asked about which Camera Manufacture or Camera Model is better or recommended far too often It comes down to personal preference where some may like how Nikon feels in their hands or how the layout of the Nikon Cameras are. Vice Verse on Canon Cameras. Nikon fans would be saying to get Nikon.
Same thing with Canon Fans where they would be saying to get Canon. So otherwise it all comes down to personal preference.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.